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   <div id="projectname">Parola for Arduino
   &#160;<span id="projectnumber">2.5</span>
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   <div id="projectbrief">Text effects for LED Matrix modular hardware</div>
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<div class="title">Main Page </div>  </div>
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<div class="textblock"><h2>The Parola Library </h2>
<p>The Parola library is implemented to work with the MD_MAX2XX library. It depends on the MD_MAX72xx library for hardware control and will run on all hardware supported by that library. The MD_MAX72XX library can be found <a href="http://github.com/MajicDesigns/MAX72xx">here</a>.</p>
<p>This software library implements functions to simplify the implementation of text special effects on the Parola display.</p><ul>
<li>Left, right or center text justification in the display field.</li>
<li>Text scrolling, text entering and exit effects.</li>
<li>Control display parameters and animation speed.</li>
<li>Multiple virtual displays (zones) in each string of LED modules.</li>
<li>User defined fonts and/or individual characters substitutions.</li>
<li>Double height displays.</li>
</ul>
<p>The latest copy of the Parola Software and hardware files can be found at the <a href="http://github.com/MajicDesigns/Parola">Parola website</a>.</p>
<div class="image">
<img src="Working_Display.jpg" alt="Working_Display.jpg"/>
<div class="caption">
The final product with 8 modules connected together</div></div>
 <h2>System Components </h2>
<ul>
<li>Hardware - documentation for supported hardware found in the MD_MAX72xx library documentation.</li>
<li><a class="el" href="page_software.html">Parola Library</a></li>
</ul>
<h2>Revision History </h2>
<p>Nov 2016 - version 2.5</p><ul>
<li>Added ambulance example</li>
<li>Updated branding to MD_ diamond</li>
<li>Added README.md file</li>
</ul>
<p>Jan 2016 - version 2.4</p><ul>
<li>Added dynamic zone example</li>
<li>Added synchZoneStart() method to allow zones start times to be synchronised</li>
<li>Added double height character example by Arek00</li>
<li>Modified all examples to conditionally include &lt;SPI.h&gt;</li>
<li>Added double height character example (v2) using Font file created by MD_MAX72xx font builder</li>
<li>Added double height clock example</li>
<li>Added HelloWorld example - simplest working code</li>
<li>Added FADE animation</li>
<li>Adjusted documentation structure</li>
<li>Added #defines ENA_* for granular selection of animations (memory saving)</li>
</ul>
<p>Aug 2015 - version 2.3</p><ul>
<li>Added set/getScrollSpacing() methods and associated Scrolling_Spacing example</li>
<li>Added set/getZoneEffect with FLIP_LR and FLIP_UD, with associated Zone_Mirror example</li>
<li>Added MESH animation</li>
<li>Fixed minor bugs and documentation</li>
</ul>
<p>April 2015 - version 2.2</p><ul>
<li>Added Scrolling_ML example</li>
<li>Added Zone_Mesg example</li>
<li>Overloaded displayClear() for single zone clear</li>
<li>Fixed bug in SLICE effect when text was too long for display</li>
</ul>
<p>February 2015 - version 2.1</p><ul>
<li>Fixed small animation problems with SLICE and SCAN_VERT</li>
<li>Fixed PROGMEM error compiling with IDE version 1.5.7</li>
</ul>
<p>March 2014 - version 2.0</p><ul>
<li>Mods to accommodate revised font handling in MD_MAX72xx library<ul>
<li>Users can now provide a user defined font PROGMEM data table</li>
<li>User code can provide individual character override for equivalent font character</li>
</ul>
</li>
<li>Additional animations<ul>
<li>SCAN_HORIZ, SCAN_VERT</li>
<li>GROW_UP, GROW_DOWN</li>
<li>SCROLL_UP_LEFT, SCROLL_UP_RIGHT, SCROLL_DOWN_LEFT, SCROLL_DOWN_RIGHT</li>
</ul>
</li>
<li>Implemented Zoned scrolling<ul>
<li>Multiple independent zoned scrolling areas in one display.</li>
<li>Each zone has all character attributes (font, alignment, speed, pause, etc).</li>
</ul>
</li>
<li>textEffect_t and textAlign_t taken out of the class definition. Requires legacy code mods.</li>
<li>Backward compatible with library version 1.x code.</li>
</ul>
<p>September 2013 - version 1.1</p><ul>
<li>Mods to accommodate changes to hardware SPI implementation in MD_MAX72xx library</li>
</ul>
<p>June 2013 - version 1.0</p><ul>
<li>New library</li>
</ul>
<h2>Copyright </h2>
<p>Copyright (C) 2013-2016 Marco Colli. All rights reserved.</p>
<p>This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.</p>
<p>This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.</p>
<p>You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA </p>
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